An international collection featuring leading scholars which fulfils three goals. First, it explains the advent and significance of the concept of 'International Society'; second, it subjects the concept to theoretical scrutiny, both for its internal coherence and for its applicability more broadly; and third, it tackles crucial contemporary global issues, including: intervention, international security, European institutions, the environmental crisis, secessionism and the norms governing new-state recognition. It is a work of value to anyone interested in the study of international relations and contemporary events.